A simple Windows 10 guide to acquiring needed software.

Telnet

Telnet in installed on Windows but it is disabled by default. To Enable it, run Command Prompt as an administrator.(Right click on the Command Prompt icon and select “Run as administrator”.) Now, run the following command and wait.
dism /online /Enable-Feature /FeatureName:TelnetClient
You can verify Telnet is installed by closing the current and opening a new Command Prompt then typing:
telnet
The following should appear.
Welcome to Microsoft Telnet Client

Escape Character is 'CTRL+]'

Microsoft Telnet>

(Info Collected From: http://tweaks.com/windows/48535/how-to-install-telnet-with-only-one-command/)

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NetCat

Download “Netcat for Windows” from https://joncraton.org/blog/46/netcat-for-windows/ . I successfully used the “Download nc111nt.zip (password:nc) - Netcat for Windows” version, but a version also exists to fool overzealous anti-virus programs.
Extract the downloaded zip file where ever you like. I placed mine in C:\Program Files\nc111nt.
Now just add the file path to the Environment Variables list.
Search “Environment Variables” on the start bar.
“Edit the system environment variables Control Panel”.
The System Properties window will popup. Click the “Environment Variables…” button.
The Environment Variables window will appear. Under System variables select Path and click the “Edit…” button.
The Edit environment variable window will appear. Click the “New” button.
Paste the file path to your unzipped netcat folder, in my case C:\Program Files\nc111nt.
Now, click the “OK” buttons in each window.
Confirm this worked by opening Command Prompt and entering
nc
The following should appear.
Cmd line:
(Info collected from various sources such as: http://helpdeskgeek.com/how-to/fix-not-recognized-as-an-internal-or-external-command/)